A California family says a hospital failed to detect a 36-year-old mother of seven’s ectopic pregnancy that has put her in a coma since Sunday.

Lisa Avila’s husband, Robert, took her to the hospital Saturday after she was experiencing severe abdominal pain, CBS Los Angeles reported. Doctors performed an ultrasound on Avila, who is 12 weeks pregnant, and told the couple the baby was fine. They sent her home with a prescription for pain medic...